That's the problem mate. I would not recommend to follow more than 100 people per day, and i wouldn't do that at once either.
What i usually do is: Get an account > Attach it to a proxy > Add all info (change username, add pic, banner, bio, etc..) > Let it age for a few days > Slowly start doing tasks.
Even twitter themselves only allow 400 Follows per day:
https://help.twitter.com/en/using-twitter/twitter-follow-limit#:~:text=What are the technical follow,to 1,000 accounts per day. - i think for a new account this is too much.
EDIT: Forgot to mention, the PV's will dissapear after a while, so i just remove the number after aging my account.